Semimajor
axis(椭圆的)半长轴
🗣️ 情景例句
Stocks, shares and bonds are good alternatives for personal investment.
储蓄、股票和债券是个人投资很好的选择。
Thank you for you cooperation.
谢谢你们的合作。
Your name, please？
请问贵姓大名？